Eel

Eel is an achievement in GRIS.

Appearance
It appears to be an eel with an eye on the top and an S-shaped body.

Achieving
The player can get this achievement by avoiding all attacks from the giant eel. Its attack can be successfully dodged whenever the Eel tries to inhale the player by waiting a bit and pressing their move button again in order to dodge.

There are two encounters that a player will experience in regards to Eel attacks and players will be required to dodge both.